Runtime file updates.
diff --git a/runtime/syntax/tex.vim b/runtime/syntax/tex.vim
index 97fc898..5e6fc7f 100644
--- a/runtime/syntax/tex.vim
+++ b/runtime/syntax/tex.vim
@@ -1,8 +1,8 @@
" Vim syntax file
" Language: TeX
" Maintainer: Dr. Charles E. Campbell, Jr. <NdrchipO@ScampbellPfamily.AbizM>
-" Last Change: Aug 09, 2010
-" Version: 56
+" Last Change: Aug 12, 2010
+" Version: 57
" URL: http://mysite.verizon.net/astronaut/vim/index.html#vimlinks_syntax
"
" Notes: {{{1
@@ -814,8 +814,8 @@
" Superscripts/Subscripts {{{2
if s:tex_conceal =~ 's'
- syn region texSuperscript matchgroup=Delimiter start='\^{' end='}' contained concealends contains=texSuperscripts,texStatement
- syn region texSubscript matchgroup=Delimiter start='_{' end='}' contained concealends contains=texSubscripts,texStatement
+ syn region texSuperscript matchgroup=Delimiter start='\^{' end='}' contained concealends contains=texSuperscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
+ syn region texSubscript matchgroup=Delimiter start='_{' end='}' contained concealends contains=texSubscripts,texStatement,texSubscript,texSuperscript,texMathMatcher
fun! s:SuperSub(group,leader,pat,cchar)
exe 'syn match '.a:group." '".a:leader.a:pat."' contained conceal cchar=".a:cchar
exe 'syn match '.a:group."s '".a:pat."' contained conceal cchar=".a:cchar.' nextgroup='.a:group.'s'